APA citations within a paper should include the author’s last name and the date of publication. Specific quotes should also include page numbers, if they are available. If any of this information is given within the text of the paper, it may be omitted from the parenthetical citation.
Multiple Authors: If there are two authors for a single source, list both authors in each citation. If there are three or more authors, cite only the first author followed by “et al.”
Multiple Sources: When citing multiple sources within the same sentence, the citation for each source should immediately follow the information cited. If there are multiple sources for the same information, the citations all go within the same parenthesis, where they are separated by semicolons and ordered alphabetically.
(Author’s Last Name, Year).
(Author, Date; Author, Date; Author, Date)
(Author & Author, Date; Author, Date)
(Author et al., Date; Author, Date)
Author's Last Name, Initials. (Year). Book title. Publisher.
Roach, M. (2010). Packing for Mars: The curious science of life in the void. W. W. Norton.
Author’s Last Name, Initials. (Year). Article title. Journal Title, volume(issue), page-range. URL
Okon, E., & Sudarsky, D. (2018). Losing stuff down a black hole. Foundations of Physics, 48(4), 411-428. https://doi.org/10.1007/s10701-018-0154-3
Author’s Last Name, Initials. (Year, Month Day). Page title. Name of Website. URL
Howell, E. (2018, March 30). Exoplanets: Worlds beyond our solar system. Space.com. https://www.space.com/17738-exoplanets.html
** All the titles below are held on permanent reserve and may be requested at the reference desk. Limited copies may also be available to check out.**
Publication Manual of the American Psychological Association, Seventh Edition by 
Publication Manual of the American Psychological Association by Writing
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Citing
Check out the Citation Research Guide.
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